Improvement in colter and plow-stock



A. H. FARMER.

COLTER AND-PLOW-STOCK.

No. 194,665, Patented. Aug. 28,1877.

y wnmissss= r INVENT B1:

A ATTORNEYS.

NPHERS. PHOTO-LITHOGRAPHEF.WASHINGTON D C A UNITED STATES PATENT DFFIG'E.

ANDREW H. FARMEB, OF OAK LEVEL, VIRGINIA.

IMPROVEMENT INCOLTER AND PLOW-STOCK.

Specification forming part of Letters Patent No. 194,665, dated August 28, 1877; application filed May 14, 1877.

are as follows:

In the accompanying drawing, forming part of this specification, Figure l is a side view of the colter and stock, showing also the manner of attaching the same to a beam. Fig. 2 is a side view of a shovel or share which may be used with the stock.

The colter A has a cutting-edge, a, nearly straight, and a curved back, b. The cuttingedge is serrated, the teeth thereof inclining downward, and horizontal grooves c extend backward from the several notches between the teeth.

This construction adapts the colter to easily sever large tough roots encountered in plowing, and the teeth are rendered self-sharpening, by reason of the notches and grooves between them, which wear back or deeper by friction with the furrow-slice.

The point d of the colter enters a recess in the point of the stock B, and the middle of its back 6 is held between ears f, which project from the stock at the bend or angle g of the same.

A right-angular arm, h, which is formed on the upper end of the colter, and projects forward of its cutting-edge, passes throughrthe beam 0, and is secured by a screw-nut, i. The stock B is also provided with a right angular arm, is, and straight stem or arm l, by which it is similarly attached to the beam.

The arm h of the colter, and the ears f formed on the stock, serve to prevent the colter being twisted or broken by torsional action.

The colter is, notwithstanding, light, and cheaply constructed.

Besides the function of the ears f in holding the back of the colter, as above stated, they serve to strengthen the stock .at its angle, without adding materially to its weight or cost.

I show in Fig. 2 a shovel or share adapted for use with the stock B, when it is desired to provide a light implement for furrowing or cultivating crops growing in rows.

What 1 claim is- In combination with the earsfat the angle having a convex back, and the right-angular arm projecting forward of the cutting-edge, as shown and described, for the purpose specified.

. ANDREW FARMER.

the stock B having Witnesses:

A. W. PHILLIPS, B. B. PHILLIPS.

thereof, the colter A 

